Americans who received an extension to file their 2025 federal income tax return have until October 15, 2026 to submit it to the IRS.
Who Must File by October 15?
The extension gives taxpayers extra time to file, but it does not extend the deadline for paying tax owed. Anyone who still has an outstanding balance should file the return as soon as possible, even if they cannot afford to pay the full amount.
The October 15 deadline applies to taxpayers who requested an automatic extension by submitting Form 4868 earlier this year. The regular deadline for 2025 federal income tax returns was April 15, 2026. An approved extension moved the filing deadline to October 15.
The extension applies to the filing of the return, not to the payment of tax. Any tax that was due on April 15 can continue to generate interest and applicable penalties until it is paid.
What Happens If You Miss the Deadline?
Failing to file by October 15 can result in a failure-to-file penalty. The IRS generally calculates this penalty at 5% of unpaid tax for each month or part of a month that the return is late, up to a maximum of 25%.
A separate failure-to-pay penalty can also apply to an unpaid tax balance, while interest can continue to accumulate.
For returns filed more than 60 days late, the minimum failure-to-file penalty can be $525 or 100% of the unpaid tax, whichever is lower, based on the IRS rules cited in the source material.
What If You Cannot Pay Your Tax Bill?
Taxpayers who cannot pay the full amount should still file their return by October 15. Filing the return can limit the additional costs associated with failing to file. Taxpayers can then pay as much as they can and review their options for dealing with the remaining balance.
The IRS has payment arrangements for people who cannot settle their tax bill immediately.
IRS Payment Plans Can Spread Out the Debt
Taxpayers with an outstanding balance may be able to arrange a short-term or long-term payment plan with the IRS. A payment arrangement can give an eligible taxpayer additional time to settle the balance rather than requiring the full amount immediately.
Taxpayers should review the IRS requirements and understand that interest and certain penalties can continue to apply while a balance remains unpaid. Some people may also qualify for penalty relief or other IRS programmes depending on their circumstances.
Some Taxpayers May Qualify for Other Relief
Taxpayers struggling with their IRS debt may qualify for programmes such as Offer in Compromise, which can settle eligible tax debt for less than the full amount owed.
Another option is Currently Not Collectible status, which can temporarily suspend certain IRS collection activity when a taxpayer cannot afford to pay. Eligibility depends on individual financial circumstances, so taxpayers should review the requirements carefully before applying.
When Should You Consider Professional Help?
Many taxpayers can file their return, arrange a payment plan or communicate with the IRS without hiring a tax relief company. Professional advice can be useful when a return is complicated or a taxpayer faces a substantial tax balance or serious collection action.
Situations involving unreported foreign assets, complex tax issues, wage garnishment or tax liens can require more specialised assistance. A tax professional can also communicate with the IRS on a taxpayer’s behalf.
Filing Now Is Better Than Waiting
The main deadline for taxpayers with an extension is October 15, 2026. Anyone who has not yet filed should avoid waiting until the final day, particularly if their return is complicated or they expect to owe money.
Even taxpayers who cannot pay their entire balance should generally file on time and then examine payment options with the IRS. Filing before the deadline can help limit penalties while giving taxpayers a clearer picture of what they owe and what arrangements may be available.
